Term used for a large or fat ass.
Used by the W or L Twitch community whenever they see a fat ass.
Adam: Look at that aunty's GYATT bro, its fat.
Brent: Please shut the fuck up
The noise i make when i see your FUCKING MOTHER!
I see a small child "GYATTTTTTTT"
When someone has a big ol’ booty
“GYATT THAT THANG MOVIN MOVIN”